Electroconductive composite of zirconia and hybrid graphene/alumina nanofibers

Irina Hussainova, Maria Drozdova, Domingo Pérez-Coll, Fernando Rubio-Marcos, Iwona Jasiuk, Julio A N T Soares, Miguel A. Rodríguez

Research output: Contribution to journalArticlepeer-review

Abstract

Novel type of hybrid nanofillers representing graphene encapsulated alumina nanofibres was selected as an additive to develop toughened electroconductive partially stabilized zirconia. The sinterability, mechanical and electrical properties of the produced nanocomposites were studied as function of the filler/graphene content. Composites containing just 0.6 vol.% of graphene corresponding to 3 vol.% of hybrid nanofibres exhibited high electroconductivity of 58 S/m without deterioration of mechanical properties. They also showed a slight toughening effect that is reflected by an increase in the indentation fracture toughness by 20% as compared to monolithic zirconia.

Original languageEnglish (US)
Pages (from-to)3713-3719
Number of pages7
JournalJournal of the European Ceramic Society
Volume37
Issue number12
DOIs
StatePublished - Sep 2017

Keywords

  • Electroconductivity
  • Graphene
  • Nanofiber
  • SPS
  • Zirconia

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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